Reference Guide

Applying DCB Policies in a Switch Stack..........................................................................................262
Configure a DCBx Operation........................................................................................................... 262
DCBx Operation..........................................................................................................................263
DCBx Port Roles..........................................................................................................................263
DCB Configuration Exchange.................................................................................................... 265
Configuration Source Election...................................................................................................265
Propagation of DCB Information............................................................................................... 266
Auto-Detection and Manual Configuration of the DCBx Version............................................266
DCBx Example.............................................................................................................................267
DCBx Prerequisites and Restrictions.......................................................................................... 267
Configuring DCBx....................................................................................................................... 267
Verifying the DCB Configuration...................................................................................................... 271
QoS dot1p Traffic Classification and Queue Assignment...............................................................280
Configuring the Dynamic Buffer Method.........................................................................................281
Sample DCB Configuration.............................................................................................................. 282
PFC and ETS Configuration Command Examples.................................................................... 284
13 Dynamic Host Configuration Protocol (DHCP)........................................285
DHCP Packet Format and Options.................................................................................................. 285
Assign an IP Address using DHCP.................................................................................................... 287
Implementation Information............................................................................................................288
Configure the System to be a DHCP Server....................................................................................288
Configuring the Server for Automatic Address Allocation........................................................289
Specifying a Default Gateway..................................................................................................... 291
Configure a Method of Hostname Resolution...........................................................................291
Using DNS for Address Resolution............................................................................................. 291
Using NetBIOS WINS for Address Resolution............................................................................ 291
Creating Manual Binding Entries.................................................................................................291
Debugging the DHCP Server......................................................................................................292
Using DHCP Clear Commands.................................................................................................. 292
Configure the System to be a DHCP Client.................................................................................... 292
Configuring the DHCP Client System........................................................................................293
DHCP Client on a Management Interface................................................................................. 295
DHCP Client Operation with Other Features............................................................................ 295
Configure Secure DHCP...................................................................................................................296
Option 82.................................................................................................................................... 296
DHCP Snooping.......................................................................................................................... 297
Drop DHCP Packets on Snooped VLANs Only......................................................................... 300
Dynamic ARP Inspection.............................................................................................................301
Configuring Dynamic ARP Inspection....................................................................................... 302
Source Address Validation................................................................................................................303
Enabling IP Source Address Validation...................................................................................... 303
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